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Chloroplast avoidance movement reduces photodamage in plants

Author

Listed:
  • Masahiro Kasahara

    (National Institute for Basic Biology)

  • Takatoshi Kagawa

    (National Institute for Basic Biology
    Japan Science and Technology Corporation)

  • Kazusato Oikawa

    (National Institute for Basic Biology
    Tokyo Metropolitan University)

  • Noriyuki Suetsugu

    (National Institute for Basic Biology
    Tokyo Metropolitan University)

  • Mitsue Miyao

    (National Institute of Agrobiological Sciences)

  • Masamitsu Wada

    (National Institute for Basic Biology
    Tokyo Metropolitan University)

Abstract

When plants are exposed to light levels higher than those required for photosynthesis, reactive oxygen species are generated in the chloroplasts and cause photodamage. This can occur even under natural growth conditions. To mitigate photodamage, plants have developed several protective mechanisms1,2,3. One is chloroplast avoidance movement4,5,6, in which chloroplasts move from the cell surface to the side walls of cells under high light conditions, although experimental support is still awaited7,8. Here, using different classes of mutant defective in chloroplast avoidance movement, we show that these mutants are more susceptible to damage in high light than wild-type plants. Damage of the photosynthetic apparatus and subsequent bleaching of leaf colour and necrosis occur faster under high light conditions in the mutants than in wild-type plants. We conclude that chloroplast avoidance movement actually decreases the amount of light absorption by chloroplasts, and might therefore be important to the survival of plants under natural growth conditions.

Suggested Citation

  • Masahiro Kasahara & Takatoshi Kagawa & Kazusato Oikawa & Noriyuki Suetsugu & Mitsue Miyao & Masamitsu Wada, 2002. "Chloroplast avoidance movement reduces photodamage in plants," Nature, Nature, vol. 420(6917), pages 829-832, December.
    • Handle: RePEc:nat:nature:v:420:y:2002:i:6917:d:10.1038_nature01213
    DOI: 10.1038/nature01213
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    Cited by:

    1. Akbar, Asfandyar & Mahmood, Farrukh ibne & Alam, Habeel & Aziz, Farhan & Bashir, Khurram & Zafar Butt, Nauman, 2024. "Field Assessment of Vertical Bifacial Agrivoltaics with Vegetable Production: A Case Study in Lahore, Pakistan," Renewable Energy, Elsevier, vol. 227(C).
    2. Wojciech Bąba & Hazem M Kalaji & Agnieszka Kompała-Bąba & Vasilij Goltsev, 2016. "Acclimatization of Photosynthetic Apparatus of Tor Grass (Brachypodium pinnatum) during Expansion," PLOS ONE, Public Library of Science, vol. 11(6), pages 1-27, June.

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